Police say he was killed by a neighbour named Nawab Siraj Talpur and his friend Shahrukh Jatoi. Talpur and Jatoi shot Khan to death after Khan got in an argument with Talpur’s servant, police say.

While attacks on Shia Muslims in Pakistan have led to the deaths of hundreds in recent months, Khan’s killing struck a chord with Pakistanis and became front-page news there after Jatoi and Talpur initially evaded arrest.

Both are members of families who belong to Pakistan’s feudal class, which for decades has wielded political influence and power and alienated those who don’t belong to the country’s aristocracy.

But the fates of the co-accused became less certain after Pakistan Supreme Court Judge Iftikhar Muhammad Chaudhry became interested in the case, threatening police that he would have them fired if arrests were not made.

While Talpur has since been taken into custody, Jatoi remains at large. He reportedly fled to the United Arab Emirates on Dec. 27 using a fake passport.

The case has also served as an example for how social media can spark change. Members of Khan’s family say the media was initially uninterested in coverage — until news of the murder started trending on Twitter and a Facebook page dedicated to Khan’s memory attracted tens of thousands of followers.

The Facebook page has featured both memories of Khan and tips to pressure police. On Saturday, a follower posted the cellphone number of a Dubai official who is allegedly hiding Jatoi. The names of the purported homeowner and location were also posted.

On Friday, two witnesses testified about Khan’s last moments.

After Khan’s blue Suzuki Swift was hit by bullets at about 2:45 a.m. on Dec. 25, the car flipped over, the witnesses said. Local media reports did not name the witnesses.

The witnesses told the judge that Khan was still alive after the initial flurry of bullets. Talpur approached the overturned car and fired more shots at him after being encouraged by Jatoi and others, the witnesses testified.

Local media reports in Pakistan said Jatoi is in Dubai and on Saturday, the Express Tribune newspaper reported a police team had left for the U.A.E. to meet Interpol authorities and Dubai police.

While Pakistan media have reported that officials in Dubai have refused to arrest Jatoi or deport him because there is no extradition treaty between the U.A.E. and Pakistan, some local news reports suggest such an agreement has been in place since at least 2007.

Pakistan officials have purportedly cancelled Jatoi’s passport and his visa in the U.A.E. expires Jan. 21, at which point police expect his return to Pakistan, the Express Tribune reported.

Pakistan media also reported this week the arrest of Jatoi’s father Sikandar.